Importing an entry, that were exported with BibTeXML format failed.

[tschechlovdev]

JabRef version
JabRef 3.5
windows 8.1 6.3 amd64
Java 1.8.0_25

Steps to reproduce:

1. Select an entry in JabRef
2. Go to "File" and then select "Export"
3. Use "BibTeXML" as export format.
4. Import the exported entry into a new database

I get hte following warning:
"1. The character reference must end with the ';' delimiter."

And after that no entries were imported.

[tschechlovdev]

I think the reason for this is, that by the authors, the "," gets exported as and &#44. So for example von Hippel, Eric gets exported as von Hippel and &#44 Eric. And then a SAXParser Exception is thrown, because after &#44 is a ';' missing.

[boceckts]

I think the authors aren't escaped at all because with my test file I also found out that &#45, &#34 and &#39 are not escaped in the authors field. After adding a";" after each of these codes I was able to import my xml file.

[matthiasgeiger]

I think the field gets generally escaped correctly, but the ; which marks the end of an HTML entity such as , is stripped or interpreted as an delimiter between different authors.

[stefan-kolb]

Related to #1337?!

[matthiasgeiger]

Not only related but a duplicate ;-)